Mithridates III of Parthia

Mithridates III of Parthia (99 BC-54 BC) was Shah of Parthia from 57 BC to 54 BC, succeeding Phraates III and preceding Orodes II.

Biography
Mithridates was a son of Phraates III, king of Parthia, whom he murdered in 57 BC with the assistance of his brother Orodes II. Orodes became king and made Mithridates king of Media, a Parthian client state. Orodes later turned on his brother and deposed him, and Mithridates took refuge with the Roman proconsul of Syria, Aulus Gabinius. Gabinius planned to assist Mithridates with an invasion of Parthia to depose Orodes, but Gabinius later turned back to assist Ptolemy XII Auletes with another civil war in Egypt. Mithridates nevertheless managed to conquer Babylonia and deposed Orodes. However, he was captured at Seleucia in 54 BC and was executed by his brother.